package reflect;

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;

public class ReflectDemo5 {
    public static void main(String[] args) throws Exception {
        Class cls = Person.class;
        Constructor c = cls.getConstructor(String.class);
        Object obj = c.newInstance("张三");

        Method method = cls.getMethod("say", String.class);
        method.invoke(obj,"你好");

        method = cls.getMethod("say", String.class,int.class);
        method.invoke(obj,"你好",3);
    }
}
